She smiled softly, burying her head against his neck, "Not for you," she countered, "Never for you." She was exactly the right amount for him. "Rean..?" She lifted her head, a small smile on her lips, ".. I want to hear you, this time."

That's all the warning she gives him, in fact, if it can even be called such, as she tucks her head against his neck rather comfortably, teasing the skin gently at first - then getting a little more bold by using her tongue.